Shark UV617 Owner's Manual page 7

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2. When first started, the sweeper will start in the highest speed to prevent
overloading the unit when starting on heavy carpets. Other speeds can then be
selected by depressing the speed selector switch.
3. For best cleaning performance, use low speed on hard surfaces, medium speed
on low carpets/rugs, and use high speed on deeper carpets. These are guide
lines and you will find the optimum speed settings for your surfaces and debris to
be picked up through use and experience.
4. The sweeper will automatically try to maintain speeds on all surfaces. The unit
may appear to be pulsing during use to maintain it's speed, this is normal. If this
occurs, please select the next highest speed to gain optimum performance.
5. To protect your sweeper and it's components, the sweeper is provided with an
electronic overload circuit. If something were to jam or overload the brush bar
system, the units speed indicators will flash and the unit will stop operating, this
is normal. To reset the unit, remove the tangled object and then depress the
on/off switch once and then depress it again to restart the unit.
NOTE:
If, when you place the sweeper to recharge and the charging indicator
light does NOT illuminate, then press the On/Off button once to turn the
sweeper off. The charging indicator light should now light up.
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